$files = Get-ChildItem "F:\x360" -Filter "*.7z" -File

foreach ($file in $files) {

    $destination = Join-Path "G:\x360iso" $file.BaseName

    New-Item -ItemType Directory -Path $destination -Force | Out-Null

    Write-Host "Extrayendo: $($file.Name)"

    & "C:\Program Files\7-Zip\7z.exe" x -y `
        $file.FullName `
        "-o$destination"

    Write-Host "Terminado: $($file.Name)"
}